Improvement in gas-engines



A.. de BISSCHOP.

GAS-ENGINE. Y

110.178,121. l Patented May 30,1876.

WTNBssBs: y da ma@ METERS, PHDTU-LITHOGRAPHER, VIASHINGTDN. ILC` rubber.

'UNITEDSTATES lrrn1\T'Il'v OFFICE.

ALEXIS DE BIsscHoi, on PARIS, FRANCE.

IMPROVEMENT |N eAs-ENem'Es.

Specification forming part of Letters Patent No. 178,121, dated May 30, 1876; application led March 14, 1876.

To all whom 'it may coucem Be it known that I, ALEXIS DE BIssoHor, of Paris, France, have invented certain Improvements in Gas-Engines, of which the following is a specification My inventionl relates to that class of motive-power engines which are operated by the explosion of a mixture of air and gas; and

y the object of my invention 4is to prevent the condensation of the gases when the engine is first put in operation. This object I attain in the manner which I will now proceed to dewheel E. The s1ide-valve F, for admittingthe air and gas to the cylinder A, is operated ,from the eccentric e onthe shaft of the driving-wheel through the medium of the lever f. This slide-valve is cut away near the cen; ter, as shown in Fig. 2, in order that it may serve to open and close communication between the cylinder and the air and gas passage d. The valve-chamber communicates at its lower end with the exhaust-passage K. The air-,valve Gr, preferably, consists of a simple plate, having a number of perforations closed by-iiap-valves composed of strips of A similar valve, G', is arranged in the gas-inlet d', which communicates with the fair-inletd, so that a mixture of the air and gas is effected before they-reach the valvechest. The gas-supply tube g, in the present instance, is of flexible material, and passes between an upright post, It, and a plate, h1,

pivoted at one end to the post, and acted upon at the other by a set-screw, h2, by operating which the pressure upon the tube g, and consequently the amount of gas which passes through the same, may be regulated at pleasure. In one side of the cylinder, a short distance from the bottom, is al1-opening, fr, and opposite this opening is a gas-jet, X, -the flame from which is projected intothe cylinder A, and serves to ignite the mixture of air and gas admitted to the same.

In engines of this class, as usually constructed, the coolness of the cylinder when the machine is irst put in operation causes the condensation of the gases, and consequent injury of the piston. 4

In order to heat the cylinder of a gas-engine by an economical device, the heating being necessary only at the commencement of the operation of the engine, I arrange below the cylinder a'supplementary and much larger burner, Y, which can be put in communication with a suitable gas-pipe, so that a liame .may be projected against the bottom of the cylinder, in order to heat thesaine previous to the machine being put in motion.-

The operation of the engine is as follows: The fly-Wheel E is iirst given a few turns, in order to induce the passage of air and gas into the cylinder. This mixture of air'and gas will be ignited by the lame from the jet X, and the power generated from the consequent cxplosion will raise the piston. When the latter commences its downward stroke the valve E will be so operated by the eccentric as to close the inlet-.passage d, and open communicationV between the cylinder and the outlet K. The momentum imparted to the wheel E will be such, however, that it will continue '-to turn, so as to raise the piston slightly, and open the valve F- for the admission of another supply of air and gas, the explosion of whichagain raises the piston. These successive explosions will continue to rotate the driving-wheel at acomparatively uniform speed. l

i It will be evident that as soon as the cylinder of the engine becomes once sufficiently heated by the gas-jet from the burner Y, communication with the supply-pipe may be closed, thus obtaining an economy in the consumption of gas, as well as economy in the construction of the device.

I claim as my invention-a The method described of preventing condensation ot' the gases in an air and gas engine--that is to say, heating the cylinder by means o f a gas-jet beneath the latter, preparatory to injecting the explosive mixture, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALEXIS DE BISSGHOP.

Witnesses:

ALFRED GOING, RoBT. M. HooPER. 

